Lake or Streambed Alteration Agreement No. EPIMS-HUM-51335-R1 – Guynup Gravel Extraction Project.
61 Documents in Project
Summary
SCH Number
1992083049
Lead Agency
Humboldt County
Document Title
Lake or Streambed Alteration Agreement No. EPIMS-HUM-51335-R1 – Guynup Gravel Extraction Project.
Document Type
NOD - Notice of Determination
Received
Posted
8/5/2025
Document Description
The project is limited to one encroachment for aggregate extraction from the channel of the Mad River for commercial purposes. The Permittee proposes to extract up to 33,600 cubic yards of gravel annually from the Guynup site (Mine ID 91-12-0012). However, due to subsequent excessive extraction concerns, federal permit restrictions on the annual volume of gravel extracted were implemented based on a flow-based analysis of gravel replenishment. The Permittee will continue extraction according to the flow-based analysis currently in use. Over the last five years (2020 through 2024), annual extraction volumes in cubic yards were as follows: 17,036; 18,580; 14,867; 27,144; and 35,172, respectively.
Contact Information
Name
Jonathan Hollis
Agency Name
CA Fish and Wildlife
Job Title
Environmental Scientist
Contact Types
Responsible Agency
Address
Phone
Name
Joshua Dorris
Agency Name
County of Humboldt
Job Title
Planning and Building Department
Contact Types
Lead/Public Agency
Address
Phone
Location
Coordinates
Cities
Korbel
Counties
Humboldt
Regions
Northern California
Parcel #
313-081-038, 313-061-001, 313-061-005
Waterways
Mad River watershed
Township
6N
Range
2E
Section
31
Base
Humboldt
Notice of Determination
Approving Agency
CA Fish and Wildlife
Approving Agency Role
Responsible Agency
Approved On
County Clerk
Humboldt
Final Environmental Document Available at
County of Humboldt
Planning and Building Department
3015 H Street
Eureka, CA 95501
Contact: Joshua Dorris
Phone: (707) 268-3779
Determinations
(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
Yes
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
No
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
No
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
No
Attachments
Notice of Determination
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